harrison



(Model.) l

A. F. HARRISON.

LOCK. No. 465,819. Patented Deo. v22, 1891.

,22g/fm Z255 wir UNITED STATES PATENT OFFICE.

ALVIN F. HARRISON, OF GREELEY, KANSAS, ASSIGNOR OF TWO-THIRDS TO LEVI W'. HARRISON AND VILLIE H. HARRISON, OF SAME PLACE.

LOCK.

SPECIFICATION forming part of Letters Patent No. 465,819, dated December 22, 1891.

Application filed January 15, 1891. Serial No. 377,793. (Model.)

.To @ZZ wil/m it may concern:

Be it known that I, ALVIN F. HARRISON, of Greeley, in the county of Anderson and State of Kansas, have invented a new and Improved Lock, of which the following is a full, clear,

and exact description.

My invention relates to improvements in locks; and the object of my invention is to produce a simple and durable lock which may 1o 'be attached to any kind of a door, which operates without springs, which will prevent the door from rattling, which will hold the door so that it cannot be accidentally opened, and which maybe used as a. night-lock as well as I5 a day-lock, having means for'being operated from the inside without a key.

@To this end my invention consists in certain features of construction and combinations of parts which will be hereinafter dezo scribed and claimed. 5

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the iigures.

Figure l is a sectional elevation of the lock with a side of the case removed and with the locking-bolt held within the case. Fig. 2 isa longitudinal section on the line a; a: of Fig. 1. Fig. 3 is a sectional elevation with the side of 3o the case removed and showing the bolt in locked position. Fig. et is a broken detail sectional view of t-he supplementary bolt and its connections with the lock-case and the keeperplate. Fig. 5 is an end view of the keeper- 3 5 plate. Fig. Gis a cross-section of the same on the line y y of Fig. 5, and Fig. 7 is a broken detail view of the key used with the lock.

The lock is provided with a main case A, which is substantially like the ordinary lock- 4o case, being made in two parts, and which may be secured to the side of a door or may be mortised into the same, and the lock is also provided with a keeper-plate B, which is secured to the door-frame opposite the lock and which is substantially like the ordinary keeper-plate, it having recesses B on each side to receive the latch-bolt and the lockingbolt; but it has also a central recess B2 on the side opposite the recesses B', which recess is 5o adapted to receive the supplement-ary bolt,

as hereinafter described.

The lock has a knob-spindle O extending through it in the ordinary way and operated in the usual manner, and the spindle carries a follower comprising a sleeve D and camlike projections CZ on opposite sides of the sleeve, and the follower is adapted to operate the link E, which is pivoted at its lower end to the wall of the case, as shown at c, and has a central bend E to receive the sleeve D, the 6o upper end of the link being pivoted to the latch-bolt F, which slides in the `upper portion of the case and the front end of which is adapted to project through a recess in the case and intothe upper recess B of the keeper-plate. It will be observed that when the door is shut and the latch-bolt F moved out, as shown in Fig. l, the follower will operate the link E and bolt F to open the door when the follower is turned in either direction; but 7o after the door is thrown open the moving of the follower does not affect the bolt. The bolt F has a recess F in its upper edge, and when the bolt is thrown out, as in Fig.- l, the recess comes beneath a recess a in the `top of the case A, and in this recess is pivoted an elbow-latch f, which, when thrown back, as in Fig. l, lies in an elongated part of the recess a, but when thrown forward, as in Fig. 3, engages the recess of the bolt F and holds the 8o bolt in locked position. The bolt F is connected by means of a link G with a short supplementary bolt I*I,which slides longitudinally in the central part of the case and which projects through a recess in the front end of the 8 5 case. 'lhe link G is pivoted near its lower end, as shown at g, to the case A. Its extreme lower end is pivoted to the inner end of the supplementary bolt II and its upper end is slotted, as shown at g', and is connected with 9o the latch-bolt F, the latch-bolt being recessed on its under side, as indicated by dotted lines in Figs. l and 3, to receive the end of thelink and to permit of the necessary movement of the link. It will thus be seen that the latchbolt F and the supplementary bolt II must move simultaneously, the latchbolt being thrown outward when the supplementarybolt is moved inward. The supplementary bolt II is split longitudinally through a greater roo part of its length to form the outside lingers II and the central finger H2, and the central iinger is thinned on one side, so that it will be a little lower than the outside fingers, and this central finger has a tooth 71, on the inner side, near the end, which tooth is adapted to engage the ratchet-teeth a" on the walls ot the case A and prevent the bolt from being pushed inward. The case A is thickened, as best shown in Fig. 2, to provide for the teeth, and it will be noticed that the teeth c' are arranged on both sides of the case A, so that the bolt I-l may be tipped over, if desired, and

the lock may thus be used as either a righthanded or a lefthanded one. vThe lingers H' and H2 are rounded,as shown at 7L', near their outer ends and terminate in projecting lips h2, which are adapted to enter the recess B2 of the keeper-plate B.

The operation .of the supplementary bolt ll and the latch-bolt F is as follows: Then the door is opened, the latch-bolt F will be drawn into the case and the supplementary bolt H will project from. the end of the case, and when the door is closed the middle linger I-l2 ot' the bolt Il will first strike in the recess B2 ofthe k.eeper-plate, and this will raise the tooth h from the teeth d', so as to permitthe bolt to slide. As the door continues to close, the rounded portion 7i' of the bolt H strikes the wall of the4 keeper-plate and forces the bolt inward, and the inward movement of the bolt H, acting on the link G, throws thelatchbolt F- outward, sok that it engages the keeperplate, the movement of the bolts being stopped by the link E striking the sleeve D, and it willi-hns be seen that the door cannot be closed without throwing` the latch-bolt into the plate, so that there will be no danger of the door being opened by the Wind or by accident. Vhen-the door is closed, the lips h2 all rest on the keeper-plate at B2, and the pressure ot the keeper middle ngerhas a tendency to crowdthe door outward; but this tendency is resisted by the bolt F, which presses against the keeper-plate from the inside, and asa result the door is held rigidly, so that it will not rattle.

In the bottom of the case A is a lockingbolt J, which slides longitudinally in the case and is adaptedl to project through a, recessin the end o f the case and to enter thelower recessv B' of the keeper-plate, andthe bolt has a pin j which is secured to it and Whiohgprojects through an elongated slot in the case A, so that by means of the pin the door may be moved independentlyy of the other 'connections, which will be described hereinafter. The. bolt J has near the front end a recess J', which receives the tumbler and holds the bolt in thervr case, a recess J2 a little in the rear of therecess J', and which receives the tumbler to hold the door locked, a recess J 2, which is located near the center of the bolt andwhich is adapted to receivea bit of the key, so that thel tumbler may be thereby thrown, and a recess J 4 near the rear end, which isadapted, to receive a projecting part of the tumbler in case the tumbler is thrown too far.

' plate.

The key-hole A2 is located centrally above the bolt J, the key-hole comprising a'cent'ral round hole, with elongated portions extending oppositel y and longitudinally in the case, and above the hole is a semicircular guide d2. At each end ot the guide are formed inclined guards (t2, the guide a2 and guards a2 being wider than the thickness of the tumbler and serving toprevent the tumbler from being tampered with.

A tu mbler K is pivoted on a pin tabove the key-hole A2, the tumbler being cut away on the under side, as shown at K', so thatit will tit over the guide ce2, and the cut-away portion has a notch k therein, which is adapted to engage a bit of the key, so that the tumbler will be thereby thrown. front end a depending' portion 71;', which 1s adapted to enter the recess J of the lockingbolt when the door is unlocked and to enter the recess J2 of the locking-bolt when the door is locked, and at the rearend ot the tumbler is a somewhat similardependingportion 7a2, which will enter the recessz J4L of the lock-- ing-bolt it the frontl end of the tumbler is thrown too high, and will thus prevent the bolt from being thrown.

The tumbler K has a pin k2, which projects through au elongated transverse recess in the case A ot the lock, sothat the tumbler may be moved by the pin, it desired, and it will thus be seen that the pins on thel tumbler and on the locking-bolt enable the lock to be. operated from the inside Without a key, as by grasping the two pins the tumbler may beadj usted so that it will not engage the bolt, the

, bolt may be movedoutward, so., as to. lock the door, andk the tumbler may then be made to engage the bolt and hold it in a locked position, as, shown in Fig. 3. This-will not pre.- vent the lock from being operated by a key from the outside.

The key used in connection with the lock is shown in Fig. 7, and consists of,l the main spindle M, which is reduced at one end, as shown at M', and from the reduced portion the lbits on and m project on opposite sides, one beinglshorter than the othenso that the. key may 5 not be too. easily duplicated, and the bits have notcliesv which lit the guide t2 and any other guides, which may be placed on the wall of the icase, in the ordinary Way.

The locking portion of the lock is operated IOO IIO

as follows: Ve'Will suppose that the door is The door, so that the short bit will extend into the Irecess J 2 and the longer bit will extend above 1 the guide 0,2. and thel longer bit, striking the tumbler at 7c, n Will raise the tumbler from engagement-With the bolt, and the shorter bit, striking-against The key is then turned further,

the trout wall` of the recess J 3, willv throwv the bolt forward, so that it willengage the keeper- Tounlock it the movement isreversed. It will be noticed that the tumbler K is piv oted a little in the rear ot' the center, so that its front end Willnormally drop into engagement with the locking-bolt.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a lock, the combination, with a sliding latch-bolt, of a supplementary bolt, anda pivoted link having its ends pivotally connected to the said bolts, substantially as described.

2. In a lock, the combination, With the case, a sliding latch-bolt, a link pivoted at one end to the case and its other end pivotally connected to the bolts, and the spindle provided with projections for engaging the link, of a supplemental bolt, and a link pivoted between its ends to the case and having its ends pivotallyconnected with the said bolts, substantially as described.

3. A lock comprising acase,a slidinglatchbolt mounted therein and adapted to be operated by the knob, a keeper-plate to receive the latch-bolt, said plate having a recess in its outer side, a supplementary bolt parallel with latch-bolt and having its front end rounded to engage the outer recess of the keeper-plate, and a link pivoted in the case and having its ends pivoted to the latch-bolt and supplementary bolt, substantially as described.

4. In a lock, the combination, with a main case and a keeper-plate having recesses on its outer and inner sides, of a sliding latch-bolt,

a supplementary bolt having its outer end formed into ngers rounded near the ends to engage the outer recess of the keeper-plate, one of said lingers having a tooth to engage teeth on the main case, and a link pivoted in the case and having its ends pivoted to the latch-bolt and to the supplementary bolt, substantially as described.

5. In a lock, the combination, with a case and a keeper-plate having an outer and inner recess, of a sliding latch-bolt, a sliding supplementary bolthavinga series of ingers,\vith their outer ends rounded and terminating in lips, the middle finger having a tooth to engage teeth on the lock-case, a stop for the supplementary bolt, and a link pivoted in the case and having its ends pivoted to the latchbolt and the supplementary bolt, substantially as described.

6. In a lock, the combination, with a case and a sliding bolt therein below the key-hole of the case and provided with recesses in its upper edge, of a tumbler pivoted in the case above the key-hole and provided With a notch in its lower edge to be engaged by the bit ot' a key and with a depending portion at each end for engaging' the recesses of the bolt, substantially as herein shown and described.

ALVIN F. HARRISON.

Witnesses:

JOHN SPRoUL, S. R. CURTIS. 

